/**
 * Pricing Page CSS - 价格方案页专属样式
 */

/* ========== 套餐卡片区域 ========== */
.pricing-cards-section {
  padding: var(--spacing-16) 0;
  background: linear-gradient(180deg, #f5f9fc 0%, #e8f4fc 100%);
}

.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-6);
  align-items: stretch;
}

.pricing-card {
  padding: var(--spacing-8);
  background: linear-gradient(180deg, #f8fbfd 0%, #eaf5fb 100%);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.45s ease;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

/* 卡片顶部渐变装饰条 */
.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), #FFD700, var(--color-primary));
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.pricing-card:hover::before {
  opacity: 1;
  animation: borderFlow 2s ease infinite;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1),
              0 0 0 1px rgba(var(--color-primary-rgb), 0.1);
}

.pricing-card-header {
  margin-bottom: var(--spacing-4);
  min-height: 90px;
}

.pricing-card-title {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--spacing-3);
  color: var(--color-black);
}

.pricing-card-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.pricing-card-currency {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  font-weight: var(--font-medium);
  align-self: flex-start;
  margin-top: 8px;
}

/* 价格数字容器 - 支持切换动画 */
.pricing-card-amount {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: var(--font-bold);
  color: var(--color-black);
  line-height: 1;
  display: inline-block;
  position: relative;
}

/* 价格切换过渡动画 */
.pricing-card-amount.price-updating {
  animation: priceSlideOut 0.2s ease-in forwards;
}

.pricing-card-amount.price-updated {
  animation: priceSlideIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes priceSlideOut {
  to {
    opacity: 0;
    transform: translateY(-12px) scale(0.95);
  }
}

@keyframes priceSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.pricing-card-period {
  font-size: var(--text-base);
  color: var(--color-gray-500);
  margin-left: 4px;
}

/* 套餐选项按钮 */
.pricing-card-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-6);
  margin-top: var(--spacing-4);
}

.pricing-option-btn {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--text-sm);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  background-color: var(--color-white);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.pricing-option-btn.active {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 2px 12px rgba(var(--color-primary-rgb), 0.35);
  transform: scale(1.05);
}

.pricing-option-btn:hover:not(.active) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

/* 功能列表 */
.pricing-card-features {
  margin-bottom: var(--spacing-8);
  flex-grow: 1;
}

/* 没有选项按钮时，features 直接跟在 header 后面需要额外间距 */
.pricing-card-header + .pricing-card-features {
  margin-top: calc(var(--spacing-4) + 44px);
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-3);
  font-size: var(--text-sm);
  color: #333;
  line-height: 1.5;
  opacity: 0;
  transform: translateX(-15px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

/* 卡片入场后触发 feature 交错动画 */
.pricing-card.animated .pricing-feature-item {
  opacity: 1;
  transform: translateX(0);
}

.pricing-card.animated .pricing-feature-item:nth-child(1) { transition-delay: 0.3s; }
.pricing-card.animated .pricing-feature-item:nth-child(2) { transition-delay: 0.4s; }
.pricing-card.animated .pricing-feature-item:nth-child(3) { transition-delay: 0.5s; }
.pricing-card.animated .pricing-feature-item:nth-child(4) { transition-delay: 0.6s; }
.pricing-card.animated .pricing-feature-item:nth-child(5) { transition-delay: 0.65s; }
.pricing-card.animated .pricing-feature-item:nth-child(6) { transition-delay: 0.7s; }
.pricing-card.animated .pricing-feature-item:nth-child(7) { transition-delay: 0.75s; }
.pricing-card.animated .pricing-feature-item:nth-child(8) { transition-delay: 0.8s; }
.pricing-card.animated .pricing-feature-item:nth-child(9) { transition-delay: 0.85s; }
.pricing-card.animated .pricing-feature-item:nth-child(10) { transition-delay: 0.9s; }

/* 橙色圆形勾选图标 */
.pricing-feature-icon-check {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border-radius: 50%;
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin-top: 1px;
  transition: transform 0.3s ease;
}

.pricing-feature-item:hover .pricing-feature-icon-check {
  transform: scale(1.15);
}

.pricing-feature-icon-check::after {
  content: '';
  width: 6px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  position: absolute;
  top: 3px;
  left: 6px;
}

/* CTA 按钮 */
.pricing-card-cta {
  width: 100%;
  justify-content: center;
  padding: var(--spacing-4) var(--spacing-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-md);
  margin-top: auto;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* CTA 光扫效果 */
.pricing-card-cta::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: none;
}

.pricing-card:hover .pricing-card-cta::after {
  animation: lightSweep 0.8s ease-in-out;
}

.pricing-card-cta.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

.pricing-card-cta.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: 0 4px 20px rgba(var(--color-primary-rgb), 0.4);
  transform: translateY(-2px);
}

.pricing-card-cta.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.pricing-card-cta.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(var(--color-primary-rgb), 0.4);
  transform: translateY(-2px);
}

/* ========== 对比表格区域 ========== */
.pricing-table-section {
  padding: var(--spacing-16) 0;
  background-color: var(--color-white);
}

.pricing-table-wrapper {
  overflow-x: auto;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-white);
}

.pricing-table th,
.pricing-table td {
  padding: var(--spacing-5) var(--spacing-6);
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
  font-size: var(--text-sm);
  vertical-align: top;
}

.pricing-table thead th {
  background-color: transparent;
  font-weight: var(--font-semibold);
  color: var(--color-black);
  font-size: var(--text-base);
  padding-bottom: var(--spacing-4);
  border-bottom: 1px solid var(--color-gray-300);
}

.pricing-table th:first-child,
.pricing-table td:first-child {
  width: 180px;
  min-width: 180px;
}

.pricing-table td {
  color: #555;
  line-height: 1.6;
}

.pricing-table tr:last-child td {
  border-bottom: none;
}

.pricing-table-header {
  font-weight: var(--font-medium);
  color: #888;
  background-color: transparent;
}

/* 表格行交错入场 + 悬停高亮 */
.pricing-table tbody tr {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out, background-color 0.3s ease;
}

.pricing-table-wrapper.animated .pricing-table tbody tr {
  opacity: 1;
  transform: translateY(0);
}

.pricing-table-wrapper.animated .pricing-table tbody tr:nth-child(1) { transition-delay: 0.1s; }
.pricing-table-wrapper.animated .pricing-table tbody tr:nth-child(2) { transition-delay: 0.18s; }
.pricing-table-wrapper.animated .pricing-table tbody tr:nth-child(3) { transition-delay: 0.26s; }
.pricing-table-wrapper.animated .pricing-table tbody tr:nth-child(4) { transition-delay: 0.34s; }
.pricing-table-wrapper.animated .pricing-table tbody tr:nth-child(5) { transition-delay: 0.42s; }
.pricing-table-wrapper.animated .pricing-table tbody tr:nth-child(6) { transition-delay: 0.5s; }
.pricing-table-wrapper.animated .pricing-table tbody tr:nth-child(7) { transition-delay: 0.58s; }

.pricing-table-wrapper.animated .pricing-table tbody tr:hover {
  background-color: rgba(var(--color-primary-rgb), 0.04);
}

/* 表格内功能列表 */
.table-feature-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.table-feature-list span {
  display: block;
  line-height: 1.5;
}

/* ========== 自定义方案区域 ========== */
.custom-plan-section {
  padding: var(--spacing-16) 0;
  background-color: var(--color-white);
}

.custom-plan-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-12);
  align-items: center;
}

.custom-plan-content h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-4);
}

.custom-plan-content p {
  font-size: var(--text-base);
  color: var(--color-gray-600);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--spacing-6);
}

.custom-plan-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background-color: var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.6s ease;
}

.custom-plan-image:hover {
  transform: scale(1.02);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}

.custom-plan-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.custom-plan-image:hover img {
  transform: scale(1.05);
}

/* ========== 联系表单区域 ========== */
.pricing-contact-section {
  padding: var(--spacing-20) 0;
  background-color: var(--color-gray-100);
}

.pricing-contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-16);
  align-items: start;
}

.pricing-contact-intro h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--spacing-4);
}

.pricing-contact-intro h3 {
  font-size: var(--text-xl);
  font-family: var(--font-body);
  font-weight: var(--font-semibold);
  margin-bottom: var(--spacing-2);
  color: var(--color-black);
}

.pricing-contact-intro p {
  font-size: var(--text-base);
  color: var(--color-gray-600);
}

.pricing-form-wrapper {
  background-color: var(--color-white);
  padding: var(--spacing-8);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.4s ease;
}

.pricing-form-wrapper:hover {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
}

/* 表单输入框聚焦动画 */
.pricing-form-wrapper .form-input,
.pricing-form-wrapper .form-select,
.pricing-form-wrapper .form-textarea {
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
}

.pricing-form-wrapper .form-input:focus,
.pricing-form-wrapper .form-select:focus,
.pricing-form-wrapper .form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
  transform: translateY(-1px);
}

/* ========== 响应式 ========== */
@media (max-width: 1199px) {
  .pricing-cards-grid {
    gap: var(--spacing-4);
  }
  
  .pricing-card {
    padding: var(--spacing-6);
  }
}

@media (max-width: 991px) {
  .pricing-cards-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .custom-plan-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
  }
  
  /* 移动端方向性动画统一为上移入场 */
  .custom-plan-content.animate-from-left,
  .custom-plan-image.animate-from-right,
  .pricing-contact-intro.animate-from-left,
  .pricing-form-wrapper.animate-from-right {
    transform: translateY(30px);
  }
  
  .custom-plan-content.animate-from-left.animated,
  .custom-plan-image.animate-from-right.animated,
  .pricing-contact-intro.animate-from-left.animated,
  .pricing-form-wrapper.animate-from-right.animated {
    transform: translateY(0);
  }
}

@media (max-width: 767px) {
  .pricing-card-amount {
    font-size: var(--text-3xl);
  }
  
  .pricing-table {
    font-size: var(--text-xs);
  }
  
  .pricing-table th,
  .pricing-table td {
    padding: var(--spacing-2) var(--spacing-3);
  }
  
  /* 移动端简化 feature 交错延迟 */
  .pricing-card.animated .pricing-feature-item {
    transition-delay: 0.15s !important;
  }
}